Technical Notes:
1.Convenient catalyst precursor, for example, with (R,R)QuinoxP* for asymmetric alkylations and hydrogenations .
2. Catalyst precursor with chiral biaryl bisphosphine ligands for (2+2+2] enantioenriched cycloadditions .
References:
1.See 15-0126
2.Angew. Chem, nt. Ed., 2009, 48, 5470.
3.Tetrahedron, 2009. 65, 5001.